Permeate Suction Line; Permeate Line - wtw PurCon IS sample preparation Operating Manual

PurCon IS
Permeate pump
Integrated protection
against freezing
Terminal box
Protection against
freezing
(option)
ba43133e06 05/2009
The operation and control of PurCon IS is carried out by the control
unit. It contains all the control and monitoring facilities that are required
for the permeate extraction and forwarding. The air compressor for the
BubbleClean self cleaning system is also contained in the control unit.
The permeate is fed by a peristaltic pump with four pump channels. The
pump output can be adjusted in four stages.

1.2.3 Permeate suction line

The permeate suction line connects the filter unit with the control unit.
It consists of three components:
2 permeate hoses (inside diameter 4 mm). These are used to feed
the permeate from the membrane plates.
Encasing tube. It is used as a protective covering for the two perme-
ate tubes. At the same time, the air shower of the filter unit is sup-
plied with compressed air from the air compressor via the encasing
tube.
The compressed air flowing through the encasing tube is warmed by
the air compressor. This ensures that, when outside temperatures are
low, the permeate does not freeze on its way through the permeate
hoses.

1.2.4 Permeate line

The permeate line forwards the permeate from the control unit to the
analyzers. It consists of the following parts:
Encasing tube.
Permeate hose (inside diameter 2 mm)
Terminal box
Heating line (option).
On the analyzer side, the permeate tube is connected to a box (terminal
box). The permeate is delivered to the analyzer or overflow vessel via
a hose nipple.
The permeate can be protected against freezing with the aid of a heat-
ing line. The temperature monitoring is carried out with the aid of a tem-
perature sensor that is integrated in a freely placeable cable box
("temperature measuring box"). The temperature measuring box is
connected with the control unit. If there is any danger of the permeate
freezing, the control electronics switch the heating line on.
Introduction
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